Amalgamator



April 17, 1928.

F. DAVIS ET AL AMALGAMATOR Filed Jan. 17, 1927 0 III Paten ted Apr. 17,1928.

r UNE'EED smrss FREEMAN nAvIsAivnLoYnDAvIs, or onncrnnvrntniown iZAJ'MALLGAMATOBL,

Application-filedJanuary'17, 1927. Serial No. 161,613; f

. This invention relates to amalgamators for use in the dentalprofession,-and aims :toima prove generally the construction oftheamal,A further object of the invention istto' structed thatthe material heldin the measuring portion of the device may be dropped into the rubbercontainer forming'a part of the invention, by the operation of a slide 2'valve. f y

With the foregoing and other objects in i view which willappear as thedescription proceedsftheinvention resides in the combination andarrangement of parts and in p 1 It Wlll be seen that due toth1sconstruc-- tion, the valve 12 also provides a bottom for;

the details of constructionhereinafter described and claimed, it beingunderstood that changes in the precise embodiment of the inventionherein within the scope of what is claimed, without 30 Referring to thedrawing:

Figure 1 is a side elevational view of an amalgamator constructed inaccordance with the. invention. w Figure 2 is a vertical sectional viewthrough the amalgamator.

Figure 3 isa plan viewthereof.

. V Figure 4:.is a sectional view taken on line 7 4-4 of Figure 1.

Referring to. device includes a hollow body portion 5 formed withinternal threads at the lower end thereof, whichthreads cooperate withthreads ofthe removable bottom 65, forming a part of the body portion. 7

A circular flange 7 extends inwardly from the inner surface of thehollow body por tion and is disposed adjacent to the upper.

end of the body portion as clearly shown by a support for the rubbercontainer indicated at 8, and which is suspended within the bodyportion, by the flange'9 restingon the flange 7, the flange 9 beingformed integral at the 65 upp er end of the rubber container 8. The bodyportion is formed with an upprovide a device of this character socondisclosed, maybe made departing from the spirit of the-invention;

container 8.

the drawing in' detail, the

Figure 2 of the drawing, which flange forms ing the, material in thecontainer, upwardly standing internally thread ed flange 1tl designed toreceive the measuringmember 11 Formed in the upstanding flange 10 iscutout portion through which the slidevalve 12 moves, .thevalvebeingconstructed of thin.

, int-an; A 7 519 9: f I

.which isalso formed with threads-"This measuring member issubstantially funnel+ shaped so that a quantity oflalloyand 'mer: curymay be poured thereinto, and later dee I posited in the rubber containerin arm anner to behereinafter'more fully described;

sheet metal and provided ;with lateral offsets 13 to prevent the'valve'l2 from being pulled through the cutout portion, when the :same

is being operated to uncover the bottomlof the member 11 to dropmaterialinto the cons tainer.

A 7. As clearly shown by Figure2, valve 12 slides over :the upperedgeof'the rubberf' container and is forced into engagement with .the'rubbercontainer by means iofpthe' meas-r repare the device for operation.

uringmember 1 1, when the measuring men the measuring member, and whenthe proper quantity of materialhas been placed in the measuring member,and the measuring member slightly rotated, to disenga'gethe valve 12,the, valve may be withdrawn by the thumb and forefinger of the personusing the'device, whereupon the contents of. the measuring device willdrop into the rubber The valve is now slid to its active position or aposition as shown by Figure 4ofthe drawing, whereupon the upper. end ofthe rubber container is sealed .and theamalga matin shaft may now berotatedfto accomplishtlie'purpose of the invention. i

The amalgamator shaft is indicated by the reference character 14' andextends through the'housing 15, the inner end -there-' of'resting in anopening as at 16; The inner end of this shaft 14 is formed, with anofiset 7 portion 17 on which the roller 18 is mounted, the offsetportionj'of the shaft being such" as to cause the roller 18 to contactwiththe lower tapered end of the container 8 throwaccomplishing theamalgamation thereof.

7 thereby eliminating the necessity of employing a separate form ofengine for rotating the shaft.

We claim:

1. An amalgamator including a body portion, a container supported in thebody portion, a removable measuring member supported on the upper end ofthe body portion, a valve disposed between the upper end of thecontainer and measuring memberfor controlhng the passage of material tothe container, and means for agitating the container to amalgamate thematerial contained therein.

I 2. An amalgamator including a body por tion, a. container in the bodyportion, a cloat the upper end of the body portion and having afunnel-shaped opening, a valve member above the container, said valvemember adapted to uncover the bottom of the measuring member to allowmaterial to pass into the container, and said valve member adapted to beclamped into engagement with the container by the measuring member toclose the container.

4. An amalgamator including a body portion, a container supported in thebody portion, means operating in the body portion for agitating thecontainer, a valve for normally closing the upper end of the container,a measuring member above the valve and container, said valve providing abottom for the measuring member, said measuring member adapted tonormally hold the valve in its active position, and said valve adaptedto move to allow material to pass from the measuring member into thecontainer.

5. An amalgamator including a body portion, a container in the bodyportion, a measuring member for directing material to the container, aslide valve for normally closing the container and held in itsclosingposition by the measuring member, and said valve adapted to move to itsopen position to allow material to pass from the measuring member intothe container. I

In testimony that we claim the foregoing as our own, wehave heretoaffixed our signatures.

FREEMAN DAVIS. LOYD DAVIS.

